There is no difference in principle between the LED driver power supply with and without IC, but the led controller ic integrates more functions in order to meet the characteristics of LED lighting. Even ordinary power driver ICs can achieve these functions, but the circuit is more complicated. . The LED drive power supply with IC has stronger functions, which can not only achieve boost and buck, but also achieve higher efficiency and control accuracy, and at the same time, the circuit size can be greatly reduced.
The LED driver IC has little to do with the circuit design scheme. It is only related to the total power required to drive the LEDs. That is, this IC has driving power, if it exceeds this power, another IC needs to be replaced. This power range is possible, but the design of the power circuit is related to the design of the LED circuit, and the driving power must be designed in a targeted manner.
like:
What is the application of LED controller IC
LED energy-saving lamp drive power precautions
How to choose LED lighting driver?